CN115138481A - Reagent and method for flotation separation of at least one mineral of galena and sphalerite from molybdenite - Google Patents
Reagent and method for flotation separation of at least one mineral of galena and sphalerite from molybdenite Download PDFInfo
- Publication number
- CN115138481A CN115138481A CN202210787041.4A CN202210787041A CN115138481A CN 115138481 A CN115138481 A CN 115138481A CN 202210787041 A CN202210787041 A CN 202210787041A CN 115138481 A CN115138481 A CN 115138481A
- Authority
- CN
- China
- Prior art keywords
- flotation
- molybdenite
- galena
- sphalerite
- mineral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005188 flotation Methods 0.000 title claims abstract description 128
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052961 molybdenite Inorganic materials 0.000 title claims abstract description 86
- 229910052949 galena Inorganic materials 0.000 title claims abstract description 80
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 60
- 239000011707 mineral Substances 0.000 title claims abstract description 60
- 229910052950 sphalerite Inorganic materials 0.000 title claims abstract description 59
- 238000000926 separation method Methods 0.000 title claims abstract description 46
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003112 inhibitor Substances 0.000 claims abstract description 68
- 239000012141 concentrate Substances 0.000 claims abstract description 36
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- 239000004088 foaming agent Substances 0.000 claims description 17
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 13
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 13
- 229940116411 terpineol Drugs 0.000 claims description 13
- 125000001424 substituent group Chemical group 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000008396 flotation agent Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 4
- 239000012190 activator Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000000304 alkynyl group Chemical group 0.000 claims description 2
- 229960000411 camphor oil Drugs 0.000 claims description 2
- 239000010624 camphor oil Substances 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 239000010642 eucalyptus oil Substances 0.000 claims description 2
- 229940044949 eucalyptus oil Drugs 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- HPNSFSBZBAHARI-UHFFFAOYSA-N micophenolic acid Natural products OC1=C(CC=C(C)CCC(O)=O)C(OC)=C(C)C2=C1C(=O)OC2 HPNSFSBZBAHARI-UHFFFAOYSA-N 0.000 claims description 2
- HPNSFSBZBAHARI-RUDMXATFSA-N mycophenolic acid Chemical compound OC1=C(C\C=C(/C)CCC(O)=O)C(OC)=C(C)C2=C1C(=O)OC2 HPNSFSBZBAHARI-RUDMXATFSA-N 0.000 claims description 2
- 229960000951 mycophenolic acid Drugs 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims 2
- 230000000994 depressogenic effect Effects 0.000 claims 2
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 15
- 230000003213 activating effect Effects 0.000 abstract description 4
- -1 molybdenum-lead-zinc sulphide Chemical compound 0.000 abstract description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 50
- 238000011084 recovery Methods 0.000 description 27
- 230000000694 effects Effects 0.000 description 24
- RQFRTWTXFAXGQQ-UHFFFAOYSA-N [Pb].[Mo] Chemical compound [Pb].[Mo] RQFRTWTXFAXGQQ-UHFFFAOYSA-N 0.000 description 22
- 230000005764 inhibitory process Effects 0.000 description 21
- LWKYWSOIKNOSRB-UHFFFAOYSA-N [Mo].[Pb].[Zn] Chemical compound [Mo].[Pb].[Zn] LWKYWSOIKNOSRB-UHFFFAOYSA-N 0.000 description 15
- WJPZDRIJJYYRAH-UHFFFAOYSA-N [Zn].[Mo] Chemical compound [Zn].[Mo] WJPZDRIJJYYRAH-UHFFFAOYSA-N 0.000 description 13
- 238000003756 stirring Methods 0.000 description 12
- 238000007790 scraping Methods 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000009837 dry grinding Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 150000002391 heterocyclic compounds Chemical group 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 229920001661 Chitosan Polymers 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229940124639 Selective inhibitor Drugs 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical compound N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical group [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/025—Precious metal ores
Abstract
The invention belongs to the field of mineral flotation, and particularly discloses a method for flotation separation of at least one mineral of galena and sphalerite from molybdenite, wherein the mineral to be selected containing molybdenite, galena and/or sphalerite contains an inhibitor represented by formula A
The flotation reagent is used for flotation, the pH value of the flotation is controlled to be less than or equal to 10, and molybdenum concentrate is obtained. In addition, the invention also provides a flotation reagent containing the inhibitor of the formula A. The method can be carried out without using any collecting agent, dispersing agent and activating agentSo as to realize the flotation separation of at least one molybdenum-lead-zinc sulphide ore.
Description
Technical Field
The invention belongs to the field of mineral flotation, and particularly relates to a flotation separation method without a collecting agent in a molybdenum-lead-zinc system.
Background
Molybdenum is a rare strategic mineral resource and is widely applied to manufacturing high-performance stainless steel, high-temperature and corrosion resistant metal alloy for missile and airplane as an alloy element. The molybdenum metal is mainly derived from molybdenite (molybdenum disulfide MoS) 2 (ii) a A sulfide mineral). With the continuous exploitation of high-grade molybdenite ores, low-grade complex sulfide ores containing galena, sphalerite and other sulfide ores become main mineral resources for extracting and utilizing molybdenum metal. Flotation is the most common method for separating complex minerals, and is one of the great inventions of the 20 th century, and by means of flotation, people can utilize mineral resources on a large scale. Flotation agents (surfactants) are the core of the flotation process and mainly comprise collectors, depressants, activators, dispersants, foaming agents and the like. Of these, collectors and depressants are the two most commonly used classes of agents that alter the wettability of mineral surfaces. Because molybdenite and galena have certain natural hydrophobicity, and have better natural floatability without adding a collecting agent, the effective separation of molybdenite and galena is very challenging to realize by developing a selective collecting agent, and therefore, the development of a selective inhibitor becomes a main research direction for the flotation separation of complex sulfide ores containing molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc. The common inhibitor of the existing floatation system containing molybdenite is sodium sulfide, although the separation effect is obvious, the inhibitor can emit toxic and inflammable hydrogen sulfide gas under the acidic condition, and the molybdenum ore and the hydrogen sulfide are separated from the waterThe surrounding environment and personnel pose potential hazards. Therefore, the development of a novel inhibitor which is efficient, highly selective and greener is of great significance for the efficient utilization of molybdenum resources.
Disclosure of Invention
The invention aims to provide a flotation separation method for molybdenite and at least one mineral of galena and sphalerite, and aims to realize selective separation of the molybdenite and the galena and/or the galena.
The second purpose of the invention is to provide a flotation reagent for at least one mineral of molybdenite, galena and sphalerite.
Molybdenite and galena are often associated and have good natural floatability, sphalerite is generally in close symbiosis with the galena, and selective separation of the molybdenite and the galena is one of the problems in the field. However, the existing flotation separation method for molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc complex sulfide ore cannot give consideration to selectivity, cost and environmental protection, and therefore the invention provides the following technical scheme:
a method for separating at least one mineral in galena and sphalerite from molybdenite by flotation comprises the steps of carrying out flotation on a mineral to be selected containing the molybdenite, the galena and/or the sphalerite in a flotation reagent containing an inhibitor shown in a formula A, controlling the pH value of the flotation to be less than or equal to 10, and obtaining molybdenum concentrate;
x is O, S or CR 4 R 5 ；
R is as described 1 ～R 5 Independently of one another, H, C 1 ～C 3 Alkyl or substituted alkyl of (a); the substituted alkyl is C with at least one substituent of hydroxyl, amino, alkoxy, halogen, alkylene, alkynyl and nitro 1 ～C 3 An alkyl group;
said R 1 ～R 5 In (b), the total carbon number is less than or equal to 6.
The research of the invention shows that the compound of the formula A has specific inhibition effect on galena and sphalerite under the pH value and basically has no inhibition effect on molybdenite, so that the selective flotation separation of the molybdenite and the galena and/or the sphalerite can be realized through the combined control of the formula A and the pH value.
According to the invention, the flotation behavior of the molybdenum-lead-zinc complex sulfide ore can be further regulated and controlled through the combination control of the formula A and the pH value innovatively, so that the mineral separation efficiency is improved. Specifically, in the flotation system of the inhibitor in the formula A, the flotation inhibition effect on galena and sphalerite is gradually enhanced along with the gradual reduction of pH, and the flotation inhibition effect on molybdenite is not obvious. The scheme of the invention can obtain high-grade molybdenite concentrate in a strongly alkaline system, and galena and sphalerite tailings are enriched in tailings, thereby realizing the efficient utilization of molybdenum resources.
In the invention, the combined control of the structure of the formula A and the substituent is one of keys for synergistically improving the flotation inhibition selectivity of galena and sphalerite, and the combined control of the formula A and pH is further beneficial to further synergistically improving the inhibition selectivity of the galena and the sphalerite and further improving the selective flotation separation effect of molybdenite and (galena and/or sphalerite).
In the invention, X is O or S. The research finds that the X is a heteroatom of O or S, the inhibition selectivity of galena and sphalerite can be unexpectedly improved, the pH value can be combined to bring better synergy, and the separation selectivity of molybdenite and galena-sphalerite can be shown to be better.
The research of the invention also finds that the control of the carbon number of the substituent is beneficial to further improvement and pH combined control cooperativity, and is beneficial to obtaining better separation selectivity of molybdenite, galena and sphalerite.
Preferably, R is 1 、R 2 、R 3 Is H, methyl or ethyl; even more preferably, R is 1 、R 2 、R 3 In (b), the total carbon number is 3 or less, and further 2 or less; most preferably, said R 1 、R 2 、R 3 Is H or methyl. It is found that the method is preferableUnder the substituent, the molecular cooperativity of the formula 1 is further improved, and the separation selectivity of molybdenite and (galena-sphalerite) is further improved.
According to the invention, under the innovative use of the inhibitor of the formula A, the pH is further controlled, the cooperativity of the formula A and the pH control can be further improved, the inhibition selectivity of galena and sphalerite can be further improved in a synergic manner, and the separation selectivity of molybdenite, galena and sphalerite can be further improved.
In the invention, the pH value of the flotation stage refers to the pH value of the ore pulp in the flotation stage.
Preferably, the pH in the flotation stage is 9 or less, and in view of separation selectivity and industrial applicability of the process, the pH is preferably 4 to 9, and more preferably 5.5 to 8.5.
In the present invention, the following preferred embodiments may be included according to the sorted objects, including:
scheme a: the mineral to be selected comprises molybdenite and galena, wherein the pH value is controlled to be less than or equal to 8, preferably 4-8, and further preferably 5.5-7.5, and the galena is inhibited from being floated to obtain molybdenite concentrate.
Scheme B: the mineral to be selected comprises molybdenite and sphalerite, wherein the pH value in the flotation stage is controlled to be less than or equal to 9, preferably 4-9, and further preferably 5.5-8.5, so that sphalerite flotation is inhibited, and molybdenite concentrate is obtained.
Scheme C: the mineral to be selected comprises molybdenite, sphalerite and galena, wherein the pH value in the flotation stage is controlled to be less than or equal to 8, preferably 5-8, and further preferably 5.5-7.5, and the galena and the sphalerite are inhibited from being floated to obtain molybdenite concentrate.
In the present invention, the flotation agent may contain a foaming agent.
The frother may be a frothing component known in the flotation art, preferably at least one of terpineol, mycophenolic acid, bipyridine, methyl isobutyl carbinol, eucalyptus oil, camphor oil, higher alcohols and synthetic frothers.
In the present invention, the amount of the foaming agent may be varied depending on the degree of flotationThe selection is adjusted to obtain a stable froth, e.g. 1X 10 frother in the pulp for flotation -6 mol/L～1×10 -3 mol/L。
In the invention, the flotation reagent can contain or not contain the collector, and the flotation reagent system of the invention preferably does not contain the collector in consideration of sorting selectivity and treatment cost. In the invention, thanks to the excellent natural floatability of molybdenite (only a foaming agent is added, the recovery rate is still higher than 85%), the heterocyclic selective galena inhibitor of the formula A is coordinated for use, and further pH regulation is matched, so that the separation behavior of minerals can be regulated and controlled in high sensitivity and high selectivity without a collecting agent.
In the flotation system according to the present invention, it is also preferable that at least one agent selected from the group consisting of a dispersant and an activator is not contained.
Preferably, the flotation reagent consists of a foaming agent and an inhibitor of the formula A.
In the invention, the control of the dosage of the inhibitor in the formula A in the flotation system is beneficial to further improving the regulation and control effect on the mineral separation selectivity and is more beneficial to the flotation separation of minerals. Preferably, the amount of the inhibitor of formula A in the ore pulp in the flotation process is more than or equal to 1X 10 -4 mol/L; preferably ≥ 2X 10 -4 mol/L; the amount of the inhibitor of the formula A to be used is more preferably 4X 10 in view of treatment inhibition selectivity and treatment cost -4 mol/L～1×10 -3 mol/L。
The research of the invention finds that the compound of the formula A used as the inhibitor can specifically inhibit galena when the pH value is less than or equal to 10 in the mixed ore of molybdenite, galena and sphalerite, and has no obvious influence on the flotation of the molybdenite. The method can realize high-efficiency separation of a molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc complex sulfide ore flotation system, and directionally improve the grade and recovery rate of molybdenite concentrate products.
According to the invention, the molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc complex sulfide ore can be efficiently separated by flotation without adding any collecting agent, dispersing agent and activating agent. Under preferred conditions: when the pH value is less than or equal to 10, the recovery rate difference values of the molybdenite, the galena and the sphalerite are higher than 72 percent.
In the present invention, the flotation process can be realized by means of existing equipment and means. For example, the mixed ore is crushed and slurried to obtain a slurry, and the flotation agent is added to the slurry to perform flotation.
The invention also provides a flotation agent (a flotation agent of a molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc complex sulfide ore flotation system) for flotation separation of molybdenite from at least one mineral of galena and sphalerite, which comprises the inhibitor of the formula A; preferably, a foaming agent is also included.
Preferably, the flotation reagent consists of the inhibitor of formula a and a frother. The flotation reagent does not contain components such as a collecting agent, a dispersing agent, an activating agent and the like.
Advantageous effects
1. The inhibitor in the formula A is used as a flotation inhibitor for galena and sphalerite, can realize synergy under the required pH value, can selectively inhibit the galena and the sphalerite, and can realize the selective separation of molybdenum-lead or molybdenum-zinc or molybdenum-lead-zinc complex sulfide ores;
for example, in the present invention, under the inhibitor of formula A, at pH 10 or less, preferably 8.5 or less, it is advantageous to achieve the selectivity of molybdenite and other minerals. The flotation pH is applied industrially, and green flotation can be realized.
2. In the invention, thanks to the compound of the formula A and further pH control, the separation behavior of complex sulfide ore containing at least one of molybdenite, galena and sphalerite can be regulated and controlled with high selectivity, so that the selective separation of minerals such as molybdenite, galena and sphalerite can be realized without using a collecting agent, a dispersing agent and an activating agent, thereby being beneficial to improving the separation selectivity of the minerals, reducing the dosage of a medicament, reducing the cost and reducing the subsequent environmental protection processing pressure and the labor cost.
Drawings
FIG. 1 is a flotation scheme used in the examples;
FIG. 2 is a graph of recovery data for example 1;
FIG. 3 is a graph of recovery data for example 2.
Detailed Description
The effect of the invention is illustrated by taking the single mineral of molybdenite, galena and sphalerite and the binary and ternary mixed sulfide ore (molybdenum-lead mixed sulfide ore; molybdenum-zinc mixed sulfide ore; molybdenum-lead-zinc mixed sulfide ore) of the three as an example. The following cases, except where specifically stated, the composition of the minerals employed are shown in table 1:
TABLE 1 original grade of single mineral of molybdenite, galena and sphalerite and binary, ternary mixed sulfide ore of the three
And (3) annotation: the weight ratio of the binary or ternary mixed mineral is 1:1:1. for example, a Mo — Pb mixed sulfide ore sample is obtained by mixing molybdenite and galena at a mass ratio of 1.
Example 1
In order to verify the separation effect of the inhibitor in the case on molybdenite, galena and sphalerite single minerals, the inhibitor in the case is used for separating molybdenite, galena or sphalerite pure minerals (the grades are shown in table 1), the flow shown in fig. 1 is adopted, the inhibitor in the case is used for inhibiting different sulfide ores, only a foaming agent is added for a flotation separation process, the parameters of the flotation process in each group of cases are the same, the type of the foaming agent is terpineol, and the concentration of the foaming agent is 1 × 10 -6 mol/L, only different in the kinds of the flotation sulfide ores, thereby comparing the flotation and separation effects of the depressants in the case.
The flotation reagent of the invention: the inhibitor is:
(formula 1; amount shown in Table 2), the foaming agent is terpineol (concentration 1X 10) -6 mol/L)。
The process shown in FIG. 1 is adopted, and the specific operations are as follows: dry grinding pure mineral ore (particle diameter of 3-0.5 mm) for 15min (particle diameter of 0.0740-0 after grinding).0374mm, dry-grinding by adopting a horizontal ball mill, wherein the grinding concentration is 35-40%), weighing 2g of ground single mineral samples (molybdenite, galena or sphalerite) in each group, pouring into a 40mL flotation tank, adding 35mL of deionized water, adding the flotation reagent, supplementing a proper amount of deionized water, stirring for 3min, and adding terpineol (the concentration in ore pulp is controlled to be 1 × 10) -6 mol/L), stirring for 3min, beginning to scrape bubbles, scraping the bubbles for 3min, scraping the concentrate to a concentrate basin along with foams, leaving tailings in a flotation tank, filtering and drying the concentrate and the tailings, then respectively weighing, calculating the recovery rate, carrying out three parallel groups of experiments in each group, taking an average value and calculating errors (variances), wherein the errors are represented as error bars in the graph.
Fig. 2 and table 2 show the recovery of molybdenite, galena and sphalerite pure minerals for example 1 at different chemical dosages. (in the case, the depressor is used as the depressor, the terpineol is used as the foaming agent, other flotation reagents are not added, and the pH value of ore pulp is 7).
As can be seen from the results of fig. 2 and table 2, in the range of the dosage of the tested chemicals, as the dosage of the inhibitor of the present invention increases, the inhibition ability of the flotation reagent of the present example on galena is significantly enhanced, and no significant inhibition effect is provided for the flotation of molybdenite, which means that the flotation inhibitor of the present example can selectively inhibit galena with high efficiency under the condition of neutral pH, and thus, the high-efficiency flotation separation of three minerals, i.e., molybdenite, galena and sphalerite, can be realized.
Table 2 flotation results of example 1
Example 2
Flotation experiments are carried out under different solution pH values, and the influence of the pulp pH value on the flotation separation of molybdenite, galena and sphalerite by the inhibitor is researched.
The flotation reagent of the invention: the inhibitor is:
(formula 1; in an amount of 5X 10) -4 mol/L) and the foaming agent is terpineol (the concentration is 1 multiplied by 10) -6 mol/L)。
High purity molybdenite, galena and sphalerite pure minerals (grades as in table 1) were used. By adopting the flow shown in FIG. 1, the flotation process parameters are the same, and the difference is only that different types of sulfide ore single minerals and different pulp pH values are adopted, so that the flotation inhibition effect of the inhibitor on molybdenite, galena and sphalerite single minerals is compared under different pH values.
The process shown in FIG. 1 is adopted, and the specific operations are as follows: dry-grinding pure mineral ore (with particle size of 3-0.5 mm) for 15min (with particle size of 0.0740-0.0374mm after grinding), and dry-grinding with horizontal ball mill to obtain medium filling rate of 30-40%. Each group weighs 2g of ground single mineral sample, pours the single mineral sample into a 40mL flotation tank, adds 35mL deionized water and then adds flotation reagents, wherein the use amount of collecting agents in the ore pulp is 2.5 multiplied by 10 -4 Adding appropriate amount of deionized water at mol/L, stirring for 3min, adding pH regulator (sulfuric acid or sodium hydroxide) to adjust the flotation system to specific pH, stirring for 3min, adding terpineol (concentration of 1 × 10) -6 mol/L) and stirring for 3min, starting foam scraping, wherein foam scraping is carried out for 3min, the concentrate is scraped to a concentrate basin along with foam, tailings are remained in a flotation tank, the concentrate and the tailings are respectively weighed after being filtered and dried, and the recovery rate is calculated.
The pH gradient set for the experiment was: 2,4,6,7,8, 10, 12.
Figure 3 shows the recovery of molybdenite, galena and sphalerite pure minerals of example 2 at different pH. (in this case, the concentration of the inhibitor is 5X 10) -4 mol/or according L; the pH regulator is sodium hydroxide solution and sulfuric acid solution; the foaming agent is terpineol with concentration of 1 × 10 -6 mol/L)。
Table 3 flotation results of example 2
It can be seen from example 2 that when the pH is less than or equal to 10, the selective inhibition effect of the inhibitor of this example on galena is very excellent, in this pH range, after the inhibitor of this example inhibits, the recovery rates of galena and sphalerite are both less than or equal to 31%, while the inhibitor of this example has no significant inhibition effect on the recovery rate of molybdenite, the recovery rate of molybdenite is both greater than or equal to 95% in the pH range less than or equal to 10, and in the pH range less than or equal to 10, the flotation recovery rate difference between molybdenite and galena and sphalerite is always in the 64% -92% range.
The results prove that the inhibitor, the flotation reagent and the separation method have excellent effects, and can realize efficient and high-selectivity separation of molybdenite, galena and sphalerite. Under a wider ore pulp pH (the pH is less than or equal to 10), the selective inhibitor, the flotation reagent or the collector-free flotation separation method can realize the high-efficiency separation of the molybdenum-lead-zinc sulfide ore. When the pH value of the flotation pulp is less than or equal to 10, high-grade molybdenite concentrate can be obtained, and directional high-efficiency inhibition of galena can be realized. In consideration of the subsequent treatment of the beneficiation wastewater, the preferable pulp pH condition is pH =6 to 8, and further preferably pH =7.
Example 3
In order to verify the separation effect of the flotation reagent in the case of the mixed sulfide ore of molybdenite, galena and sphalerite, we adopted high-purity molybdenite, galena and sphalerite pure minerals (grades are as in table 1), and the ratio of 1:1 or 1:1:1 proportion to obtain molybdenum-lead mixed sulfide ore, molybdenum-zinc mixed sulfide ore and molybdenum-lead-zinc mixed sulfide ore, and adopting the flow shown in figure 1. The concentration of the inhibitor in the case is 5 multiplied by 10 -4 mol/L and pH 7.
The flotation reagent of the invention: the inhibitor is:
(formula 1; amount 5X 10) -4 mol/L) and the foaming agent is terpineol (the concentration is 1 multiplied by 10) -6 mol/L), flotation pulp pH =7.
The specific operation is as follows: dry-grinding pure mineral ore (particle size of 3-0.5 mm) for 15min (particle size of 0.0740-0.0374mm after grinding, dry-grinding with horizontal ball mill, and medium filling rate of 30-40%), weighing 2g mixed mineral samples in each group, pouring into 40mL flotation tank, addingAdding 35mL of deionized water, adding the inhibitor of the invention, and supplementing a proper amount of deionized water, wherein the concentration of the inhibitor is 5 multiplied by 10 -4 mol/L, wherein the pH value of ore pulp is 4/10; stirring for 3min, adding terpineol (concentration of 1 × 10) -6 mol/L), stirring for 3min, starting to scrape bubbles, scraping the bubbles for 3min, scraping the concentrate to a concentrate basin along with foams, leaving tailings in a flotation tank, filtering and drying the concentrate and the tailings, then weighing the concentrate and the tailings respectively, detecting the grade of the concentrate and calculating the recovery rate.
The specific mixing ratio of the molybdenum-lead mixed sulfide ore, the molybdenum-zinc mixed sulfide ore and the molybdenum-lead-zinc mixed sulfide ore in the case of the series of the molybdenum-lead mixed sulfide ores is as follows:
this case of molybdenum-lead mixed sulphide ore: 1g of molybdenite and 1g of galena, and stirring for 5min at room temperature to fully and uniformly mix the minerals for use;
this case of molybdenum-zinc mixed sulphide ore: 1g of molybdenite and 1g of sphalerite are stirred for 5min at room temperature, so that the minerals are fully and uniformly mixed for use;
this case of molybdenum-lead-zinc mixed sulphide ore: 0.67g of molybdenite, 0.67g of galena and 0.67g of sphalerite, and stirring for 5min at room temperature to fully and uniformly mix the minerals for use;
the grades of the components of the present case of molybdenum-lead mixed sulphide ore, molybdenum-zinc mixed sulphide ore and molybdenum-lead-zinc mixed sulphide ore are shown in table 1.
Table 4 shows the recovery of each mineral and the grade of the corresponding metal in the flotation concentrate product of the mixed ore minerals in example 3 at a pulp pH of 7.
Table 4 flotation results of example 3 (pulp pH 7)
As can be seen from the results in Table 4, the inhibitor concentration was 5X 10 -4 When the concentration of the flotation reagent is mol/L, the flotation reagent has excellent separation effect on molybdenum-lead mixed sulfide ore, molybdenum-zinc mixed sulfide ore and molybdenum-lead-zinc mixed sulfide ore when the pH value of ore pulp is 7. Under the condition that the pH =7, the inhibitor and the flotation reagent of the invention have low recovery rate (2.8 percent) and low grade (2.8 percent) to galena of molybdenum-lead mixed sulfide ore3.0 wt.%) is much stronger than the inhibitory effect on molybdenite (recovery higher than 75%, grade higher than 56 wt.%). According to flotation results, the flotation reagent provided by the invention remarkably improves the flotation separation effect of molybdenite and galena, and the grade of useful mineral molybdenite is remarkably improved and reaches 56.2wt.% when the pH =7. Under the condition that the pH =7, the separation effect of the inhibitor and the flotation reagent on the molybdenum-zinc mixed sulfide ore is also excellent, the recovery rate of the sphalerite is as low as 0.9%, the grade is as low as 0.6 wt%, the recovery rate of the molybdenite is higher than 91%, and the grade is as high as 57.8 wt%. The separation effect of the inhibitor and the flotation reagent on the molybdenum-lead-zinc mixed sulfide ore is also very excellent, the recovery rate of molybdenite is 88.2%, the recovery rates of galena and sphalerite are lower than 14%, the grade of Mo in a concentrate product is 46.3 wt%, and the grades of Pb and Zn are 10.3 wt% and 5.5 wt%, respectively.
Example 4
In order to verify the influence of the regulation substituent in the inhibitor structure on the galena selective inhibition, compounds of formula A with different structures are selected as inhibitors, high-purity molybdenite and galena pure minerals (the grades are shown in table 1) are still adopted, and the ratio of the content of the inhibitor to the content of the galena selective inhibition is determined according to the following formula 1:1 proportion to obtain the molybdenum-lead mixed sulfide ore, and adopting the flow shown in figure 1.
Flotation reagent: the following inhibitors (all concentrations in the pulp are 5X 10) -4 mol/L) and frother (concentration in pulp is 1X 10) -6 mol/L)；
Experimental group 1: inhibitor a:
experimental group 2: inhibitors b:
experimental group 3: and (3) inhibitor c:
experimental group 4: inhibitor d:
experimental group 5: inhibitor e:
experimental group 6: inhibitor f:
experimental group 7: the inhibitor g is chitosan
Inhibitor concentration of each group was 5X 10 -4 mol/L terpineol as foaming agent (concentration 1X 10) -6 mol/L), flotation pulp pH =7.
The specific operation is as follows: dry grinding pure mineral ore (particle size of 3mm-0.5 mm) for 15min (particle size of 0.0740-0.0374mm after grinding, dry grinding by adopting a horizontal ball mill, and medium filling rate of 30-40%), weighing 2g of mixed ore samples which are ground well and uniformly mixed according to a proportion in each group, pouring the 2g of mixed ore samples into a 40mL flotation tank, adding 35mL of deionized water, adding the flotation reagent, supplementing a proper amount of deionized water, and adding the inhibitor with concentration of 5 multiplied by 10 for all -4 mol/L, pH of ore pulp is 7; stirring for 3min, adding terpineol (concentration of 1 × 10) -6 mol/L), stirring for 3min, starting foam scraping, performing foam scraping for 3min, scraping the concentrate to a concentrate basin along with foam, leaving tailings in a flotation tank, filtering and drying the concentrate and the tailings, then weighing the concentrate and the tailings respectively, detecting the grade of the concentrate and calculating the recovery rate.
This case of molybdenum-lead mixed sulphide ore: 1g of molybdenite and 1g of galena, and stirring for 5min at room temperature to fully and uniformly mix the minerals for use;
the grades of the components of the molybdenum-lead mixed sulphide ore in this case are shown in table 1.
TABLE 5 flotation results of example 4 (pulp pH 7)
TABLE 5 flotation concentrate of molybdenum-lead bulk sulfide ore of example 4The recovery rate of each sulphide ore and the grade of the corresponding metal. (in this case, the concentration of each inhibitor was 5X 10 4 mol/L, pH 7). As can be seen from Table 5, when the collector concentration was 5X 10 -4 When the mol/L and the pH =7, the inhibitor and the inhibitor structure of the formula A contained in the flotation reagent of the invention are within the limit conditions of the invention (the inhibitors a-d), and a better index is obtained in the separation of molybdenum-lead mixed sulfide ore. When the heterocyclic compound structure is out of the range of the present invention (inhibitor e: R) 1 、R 2 And R 3 Total number of carbons is 8, wherein R 2 Is a long straight chain alkane substituent, and the index (molybdenite recovery rate or Mo grade) of the molybdenite concentrate obtained by separating molybdenum-lead mixed sulfide ore is obviously reduced.
As can be seen from the test results, R 1 、R 2 And R 3 The less the total carbon, the better the index of molybdenite concentrate product obtained by separating molybdenum-lead mixed sulfide ore, R 1 、R 2 And R 3 The sorting effect is best when H or no substituent is present. The comprehensive results show that the inhibitor and the flotation reagent have very obvious effect on the selective inhibition of galena, and the indexes of molybdenite concentrate products can be further improved by regulating and controlling substituent groups in the inhibitor compound.
As can be seen from experimental groups 5 and 6, when R is equal to pH =7 in the pulp 1 、R 2 And R 3 When at least one of the substituent groups is a branched chain, a branched chain and an aromatic ring substituent group with the total carbon number exceeding 6, the inhibition effect of the heterocyclic compound is greatly reduced, and the heterocyclic compound is converted from an inhibitor to a collecting agent. The recovery of galena in experimental groups 5 and 6 rose sharply to 62.0% and 68.9, respectively, when the pulp pH =7, indirectly resulting in a reduction in the molybdenite grade in the flotation concentrate to 34.9wt.% and 32.8wt.%, respectively.
As can be seen from the experimental group 7, compared with the traditional macromolecular organic inhibitor chitosan of the sulfide ore, the inhibitor of the invention has more excellent inhibition selectivity, can selectively inhibit galena in a molybdenum-lead (-zinc) mixed sulfide ore separation system, and has no obvious influence on the recovery rate of molybdenite. The traditional macromolecular inhibitor has poor inhibition selectivity, can inhibit various sulfide ores simultaneously, and causes the recovery rate and the grade of molybdenite in a flotation concentrate product to be reduced simultaneously.
Claims (10)
1. A method for separating at least one mineral in galena and sphalerite from molybdenite by flotation is characterized in that the mineral to be selected containing the molybdenite, the galena and/or the sphalerite is subjected to flotation in a flotation reagent containing an inhibitor shown in a formula A, the pH value of the flotation is controlled to be less than or equal to 10, and molybdenum concentrate is obtained;
x is O, S or CR 4 R 5 ；
Said R 1 ～R 5 Independently of one another, H, C 1 ～C 3 Alkyl or substituted alkyl of (a); the substituted alkyl is C with at least one substituent of hydroxyl, amino, alkoxy, halogen, alkylene, alkynyl and nitro 1 ～C 3 An alkyl group;
r is as described 1 ～R 5 In (b), the total carbon number is less than or equal to 6.
2. The method of claim 1, wherein X is O or S.
3. The method of claim 2, wherein R is 1 、R 2 、R 3 Is H, methyl or ethyl;
even more preferably, R is 1 、R 2 、R 3 In (b), the total carbon number is less than or equal to 3, and further less than or equal to 2; most preferably, said R 1 、R 2 、R 3 Is H or methyl.
4. The method according to claim 1, wherein the mineral to be selected comprises molybdenite and galena, the pH is controlled to be less than or equal to 8, preferably 4 to 8, and more preferably 5.5 to 7.5, and the galena flotation is inhibited to obtain molybdenite concentrate.
5. The method according to claim 1, wherein the mineral to be selected comprises molybdenite and zincblende, wherein the flotation of zincblende is inhibited by controlling the pH in the flotation stage to pH 9 or less, preferably 4 to 9, more preferably 5.5 to 8.5, to obtain molybdenite concentrate.
6. The method according to claim 1, characterized in that the mineral to be sorted comprises molybdenite, sphalerite and galena, wherein the pH in the flotation stage is controlled to be less than or equal to 8, preferably 5-8, and more preferably 5.5-7.5, and molybdenite concentrate and tailings enriched with galena and sphalerite are obtained by flotation.
7. The method of claim 1, wherein the flotation agent comprises a frother;
preferably, at least one of terpineol, mycophenolic acid, heavy pyridine, methyl isobutyl carbinol, eucalyptus oil, camphor oil, higher alcohols and synthetic foaming agents;
preferably, the amount of frother used in the flotation agent is 1 × 10 -6 mol/L～1×10 -3 mol/L。
8. The method of claim 7, wherein the flotation reagent is free of collectors;
preferably, the flotation reagent does not contain at least one of a dispersant and an activator;
preferably, the flotation reagent consists of the depressant of formula a and a frother.
9. The process according to any of the claims 1 to 8, characterized in that the amount of inhibitor of formula A in the pulp of the flotation process is 1 x 10 or more -4 mol/L; preferably ≥ 2X 10 -4 mol/L; more preferably 4X 10 -4 mol/L～1×10 -3 mol/L。
10. A flotation reagent for flotation separation of at least one of galena and sphalerite from molybdenite, characterized in that it comprises an inhibitor of formula a according to any one of claims 1 to 9;
preferably, a foaming agent is also included;
preferably, the flotation reagent consists of the depressant of formula a and a frother.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787041.4A CN115138481B (en) | 2022-07-06 | 2022-07-06 | Medicament and method for separating at least one mineral of galena and sphalerite from molybdenite through flotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787041.4A CN115138481B (en) | 2022-07-06 | 2022-07-06 | Medicament and method for separating at least one mineral of galena and sphalerite from molybdenite through flotation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115138481A true CN115138481A (en) | 2022-10-04 |
| CN115138481B CN115138481B (en) | 2024-01-26 |
Family
ID=83412706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210787041.4A Active CN115138481B (en) | 2022-07-06 | 2022-07-06 | Medicament and method for separating at least one mineral of galena and sphalerite from molybdenite through flotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115138481B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295962A (en) * | 1980-04-30 | 1981-10-20 | Phillips Petroleum Company | Recovering copper by flotation using N-mercaptoalkyl amide depressant |
| CA1162662A (en) * | 1979-11-19 | 1984-02-21 | Michael J. Scanlon | Froth flotation process |
| SU1027885A1 (en) * | 1981-05-26 | 1986-05-30 | Предприятие П/Я А-1997 | Method of non-sulfide ore flotation |
| DE4336802A1 (en) * | 1993-10-28 | 1995-05-11 | Henkel Kgaa | Sulphosuccinamates |
| CN102503873A (en) * | 2011-11-02 | 2012-06-20 | 中南大学 | Diltiazem allene amidoxime compound, application of diltiazem allene amidoxime compound in flotation of metal mine and preparation method for diltiazem allene amidoxime compound |
| US20140011823A1 (en) * | 2011-03-14 | 2014-01-09 | Kowa Company, Ltd. | Novel phenylpyridine derivative and drug containing same |
| US20150203383A1 (en) * | 2013-07-05 | 2015-07-23 | Mitsubishi Heavy Industries, Ltd. | Water treatment process and water treatment system |
| CN107029893A (en) * | 2017-05-10 | 2017-08-11 | 中南大学 | Aminotriazole(ATA) thione compounds as metal sulfide ore surface modifier application |
| CN107470032A (en) * | 2017-08-16 | 2017-12-15 | 黑龙江工业学院 | A kind of complex floatation agent for coal preparation and preparation method thereof |
| CN112827659A (en) * | 2021-01-03 | 2021-05-25 | 中南大学 | Reagent and method for selective flotation separation of galena and sphalerite |
| CN113102113A (en) * | 2021-04-13 | 2021-07-13 | 中南大学 | Selective flotation separation agent and method for galena and zinc-containing gangue |
| US11203694B2 (en) * | 2019-01-31 | 2021-12-21 | The Johns Hopkins University | Anti-microbial coating for the prevention of biofouling |
-
2022
- 2022-07-06 CN CN202210787041.4A patent/CN115138481B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1162662A (en) * | 1979-11-19 | 1984-02-21 | Michael J. Scanlon | Froth flotation process |
| US4295962A (en) * | 1980-04-30 | 1981-10-20 | Phillips Petroleum Company | Recovering copper by flotation using N-mercaptoalkyl amide depressant |
| SU1027885A1 (en) * | 1981-05-26 | 1986-05-30 | Предприятие П/Я А-1997 | Method of non-sulfide ore flotation |
| DE4336802A1 (en) * | 1993-10-28 | 1995-05-11 | Henkel Kgaa | Sulphosuccinamates |
| US20140011823A1 (en) * | 2011-03-14 | 2014-01-09 | Kowa Company, Ltd. | Novel phenylpyridine derivative and drug containing same |
| CN102503873A (en) * | 2011-11-02 | 2012-06-20 | 中南大学 | Diltiazem allene amidoxime compound, application of diltiazem allene amidoxime compound in flotation of metal mine and preparation method for diltiazem allene amidoxime compound |
| US20150203383A1 (en) * | 2013-07-05 | 2015-07-23 | Mitsubishi Heavy Industries, Ltd. | Water treatment process and water treatment system |
| CN107029893A (en) * | 2017-05-10 | 2017-08-11 | 中南大学 | Aminotriazole(ATA) thione compounds as metal sulfide ore surface modifier application |
| CN107470032A (en) * | 2017-08-16 | 2017-12-15 | 黑龙江工业学院 | A kind of complex floatation agent for coal preparation and preparation method thereof |
| US11203694B2 (en) * | 2019-01-31 | 2021-12-21 | The Johns Hopkins University | Anti-microbial coating for the prevention of biofouling |
| CN112827659A (en) * | 2021-01-03 | 2021-05-25 | 中南大学 | Reagent and method for selective flotation separation of galena and sphalerite |
| CN113102113A (en) * | 2021-04-13 | 2021-07-13 | 中南大学 | Selective flotation separation agent and method for galena and zinc-containing gangue |
Non-Patent Citations (2)
| Title |
|---|
| C.A. KOZLOWSKI: "The effect of tautomeric rearrangement on the separation of Zn(II) and Cd(II) in ion flotation process with 4-thiazolidinone derivatives", 《MINERALS ENGINEERING》, vol. 15, pages 677 * |
| 王萍: "锂辉石晶体结构及浮选药剂作用机理综述", 《中国矿业大学学报》, vol. 51, no. 3, pages 544 - 553 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115138481B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105435953B (en) | Beneficiation method for molybdenum-containing low-grade mixed copper ore | |
| AU2007284003B2 (en) | Collectors and flotation methods | |
| CN101134180A (en) | High iron pelitization wulfenite floatation method | |
| CN102896050A (en) | Pyrrhotite flotation inhibitor, preparation and application thereof, and copper-nickel sulfide ore beneficiation method | |
| AU2013293041B2 (en) | Monothiophosphate containing collectors and methods | |
| CN105381867B (en) | A kind of method for floating of aphanitic graphite | |
| CN112973968B (en) | Flotation reagent and flotation separation method for pyrite-chalcopyrite | |
| JP2011156521A (en) | Method of separation of arsenic mineral from copper material containing high-level arsenic | |
| CN111468302B (en) | Beneficiation inhibitor and purification method of molybdenum rough concentrate | |
| CN108456153A (en) | Cinnamyl group hydroximic acid and preparation method thereof and the application in floatation of tungsten mineral | |
| CN105268558B (en) | A kind of method of the valuable component comprehensive utilization of the low cuprate complex copper-sulphide ores association of high-sulfur | |
| CN111266194B (en) | Composite flotation reagent and method for flotation separation of molybdenite and talc | |
| CN110605182B (en) | Blast furnace cloth bag dedusting ash flotation reagent and application method thereof | |
| CN112973967A (en) | Composite collecting agent, composite reagent and method for selectively separating galena and chalcopyrite | |
| CN115138481A (en) | Reagent and method for flotation separation of at least one mineral of galena and sphalerite from molybdenite | |
| CN109465113B (en) | Bauxite flotation collector and bauxite flotation method | |
| CN114589012B (en) | Copper-molybdenum-lead ore flotation flocculant, preparation method thereof and flocculation flotation method | |
| CN112403683B (en) | P-Ph-SO2Use of generic compounds in mineral flotation | |
| CN112808463B (en) | Medicament and method for flotation separation of iron-titanium ore and iron-containing gangue | |
| CN115069423B (en) | Method for sorting at least one sulfide ore based on pH regulation and control of Mo-Pb-Zn | |
| CN112427145B (en) | Flotation separation method for galena and pyrite | |
| CN115138482A (en) | Targeted inhibition and Cu-Fe-Mo sulfide ore flotation separation method for chalcopyrite and/or pyrite | |
| CN115007323B (en) | Method for inhibiting pyrite floatation in minerals | |
| CN108435438A (en) | A kind of suppression copper deactivator, preparation method and copper-bearing mineral method for floating | |
| CN115445781A (en) | Method for flotation inhibition and selective flotation separation of pyrite and chalcopyrite of sulphide ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |